Bosch Rexroth ID 40 Manual page 16

16/176 Introduction
Bosch Rexroth AG, MIT: ID 40, 3 842 530 344/2014-05
PROOF COPy 1 | 20.05.2014 | FOR INTERNAL USE ONLy
The SLK does not switch to the ERROR state in the event of communication
interruptions while exchanging data with the MDT. This kind of error information is
sent by the system through the fieldbus.
2.2.1.6 Busy
The read/write head is temporarily processing link state switching requests. The
status display may show bsy.
2.2.1.7 Transitions between link states
The link state switches either by a request from the control system or when an event
defined in the following table occurs.
Operating state switches due to a command (commanded link state) from the
control system (PLC):
Table 2: Relationship between commanded link state and link state
Commanded link state to SLK
CONNECT
DISCONNECT
RECONNECT
ERROR
After every commanded link state, the system checks whether or not the actual
link state corresponds to the expected state. Only then can the next step in the
process be executed.
Only permitted in link state
(display)
DISCONNECTED (OFF)
ERROR (E00)
CONNECTED (CON)
CONNECTING (WAI)
CONNECTED (CON)
DISCONNECTED (OFF)
CONNECTING (WAI)
CONNECTED (CON)
Commanded link state results
in link state (display)
CONNECTING (WAI)
DISCONNECTED (OFF)
CONNECTING (WAI)
ERROR (E00)